Box-heading machine.



M. 1. WHEELER.

BOX HEYADING MACHINE APPucmou FILED mm a, ma.

1,%88,329, Patented Dec. 17, 1918.

WITNESSES MKMM.

ATTORNEYS MORRIS JUDSON WHEELER, OF PETERBORO, NEW HAMPSHIRE.

BOX-HEAIDING MACHINE.

Specification of Letters Patent.

iatented Dec. 1'7, 1918.

Application filed June s, 1918. Serial No. 238,070.

To all whom it may concern:

Ee it known that I, MonRIs J. lVHnnLnn, a citizen of the United States, and a resident of Peterboro, in the county of Hillsborough and State of New Hampshire, have invented a new and Improved Box-Heading Machine, of which the following is a full, clear, and exact description.

This invention relates to a machine for fastening disk-shaped heads in metal or wood cylindrical box bodies by point pricking the metal or wood of the body to form inwardly extending projections or barbs which bite into the periphery of the box head.

The invention has for its general objects to improve the construction and operation of machines of this. character so as to be reliable and efficient in use, comparatively simple and inexpensive to manufacture, and so designed as to permit the work to be expeditiously done.

A more specific object of the invention is the rovision of a work holder incombination with a plurality of piercing elements having a rectilinear and pivotal movement and operatively connected with an actuating ring, there being a novel mechanism actuated by the pedal or equivalent device for oscillating the ring.

lVith such and other objects in view, the invention comprises various novel features of construction and arrangement of parts which will be set forth with particularity in the following descrip tion and claims ap pended hereto.

In the accompanyin drawing, which illustrates one embodiment of the invention and wherein similar characters of reference indicate corresponding parts in all the views,

Figure 1 is a plan view of the machine with the parts in normal position;

Fig. 2 is a similar view showing the position of the parts when the head of the box is completely attached to the body;

Fig. 3 is a detail sectional view.

Referring to the drawing, 1 designates an ordinary work bench or table on which is fastened a bed plate 2 having a central annular raised portion forming a work holder 3 on which the head a and body 7) of a box are adapted to be placed for fastening the head and body together. The central raised portion 3 of he bed plate 2 forms a race for a ring 4 which has a limited turning movement around its center. On the ring are pivotally connected at 5 a plurality of tool elements 6 each having a piercing point 7, there being pivoted boxes or guides 8 on the raised portion 3 of the bed through which the elements 6 reciprocate. By turning the ring 4. in a clockwise direction the piercing members 6 are moved normally from the position shown in Fig; 1 to that shown in Fig. 2, whereby the body I) of the box is pierced so that barbs or projections b are formed which bite into the head a. An anti-clockwise movement of the ring from the position shown in Fig. 2 retracts the piercing elements so that the box body with the head attached thereto can be removed from the machine.

The mechanism for operating the ring comprises a lever 9 pivotally connected at 10 with the ring in approximately tangential relation thereto, and a link 11 extending at an angle of approximately sixty degrees to the lever is pivotally connected at 12 with the ring and at 13 with the lever. The lever 9 is connected with one of a pair of toggle links 14: and 15 at a point 16 which is out wardly from the link 11 in a direction away from the ring 4:, the toggle link 15 being pivotally connected at 17 with a fixed bracket 18 on the bench 1. A yoke 19 is connected with a central joint- 20 of the toggle link, and through this yoke extends a helical extension spring 21 anchored at a fixed point 22 on the bench and connected with the outer end of the lever 9 at 23. This spring normally holds the toggle links in the position shown in Fig. 1, but when the toggle links are actuated to operate the machine the spring is drawn like the string of a bow, and placed under tension, as shown in Fig. 2, so as to return the parts to normal position when the operating power on the toggle links is removed. Any suitable means may be employed for actuating the toggle links, as for instance, a cable 24: which is connected with the yoke 19 and passes over a guide pulley 25 in the bench 1, the cable being connected by a pedal or other means (not shown), whereby the parts can be moved from the position shown in Fig. 1 to that shown in Fig. 2. When the pressure on the pedal is removed the parts automatically return to normal position again.

From the foregoing description taken in connection with the accompanying drawing, the advantages of the construction and method of operation will be readily understood by those skilled in the art to which the invention appertains, and while have described the principle of operation, together with the device which I now con sider to be the best embodiment thereof l desire to have it understood that the device shown is merely illustrative and that such changes may be made when desired as fall within the scope of the appended claims.

Having thus described my invention, I claim asnew and desire to secure by Letters Patent:

1. A machine of the class described, comprising abed having a work holder, a ring mounted to move around its center, means connected with the ring for oscillating the same, reciprocatory tool elements disposed between tangential and radial lines with respect to the ring and having piercing points at their inner ends. means pivotally connecting the elements with the ring, and pivoted guides on the bed and in which the tool elements are mounted to be projected therefrom when the ring is oscillated.

2. A machine of the class described comrising a work holder, piercing elements, a ever for actuating the elements, toggle links connected with the lever for oscillating the same, a helical extension spring having one end anchored and the other end connected with the lever and an intermediate portion connected with the centraljoint of the toggle links, and means connected with the central joint of the toggle links for actuating the same inopposition to the spring.

3. A machine of the class described comprising a work holder, elements co'tiperating therewith to act on the work, an oscillatory member to which the elements are connected, a lever connected with the member,- a toggle device having one end connected with the lever and the other end anchored and having an intermediate joint, operating means connected with the said joint, an extensible elastic element anchored at one end and having its opposite end connected with the lever, and means connecting an intermediate por tion of the extensible element with the said joint of the toggle device.

4:. A machine of the class described including a vwork holder, tool elements 006perating therewith, an oscillatory member for actuating the elements, a lever having one end pivotally connected with the memher, a link pivotally connected with the lever and member, a device including a swinging member pivotally connected with the lever at a point intermediate its ends, and an elastic element having one end anchored and the other end connected with the lever at the extremity opposite from that connected with the first mentioned member, and an intermediate portion of the spring being connected with the second-mentioned member.

MORRIS JUDSON 'WHEELER.

Copies of this patent may be btaihed for fiire cents each, by addressing the Commissioner of Patents, Washington, D. G. 

